Black Diamond For Solar Energy Conversion

By alessandro bellucci paolo calvani marco girolami.

Black diamond for solar energy conversion.

Black diamond is obtained by a controlled nanoscale periodic texturing of cvd diamond surface able to drastically modify the interaction with solar radiation from optical transparency up to solar. Trucchi a a. A solar absorptance of about 98 is achieved as well. Enter the password to open this pdf file.

Abstractblack diamond namely a surface textured diamond film able to absorb efficiently the sunlight is developed by the use of ultrashort pulse laser treatments. Optimization of black diamond films for solar energy conversion. Dr fox is developing special electrodes for the converters using nanoparticles of industrial diamond powder which is low cost and readily available. Enter the password to open this pdf file.

For the first time the related solar generator prototype is designed and fabricated by developing advanced materials functionalized for the specific application such as thermally resistant hafnium carbide based radiation absorbers surface textured at the nanoscale to obtain a solar absorptance 90 and chemical vapor deposition diamond. In any case the most immediate application of black diamond especially in its high defect density but large area low cost polycrystalline form is as a competitive high temperature radiation absorber for solar thermodynamic conversion due to a solar absorptance larger than 90 and high thermal resistance. Specifically the conversion efficiency of a pete cathode the thermionic emission of which is mainly established by the work function of the emitting surface depends mostly on the photoelectronic contribution that in the case of a black diamond device has to be optimized and carefully analyzed. A new solar power technology has been developed generating energy by harnessing diamonds.

A european research team within the european commission s fp7 framework are leading the prome3the2us2 project developing the black diamond as a breakthrough concept which is expected to change the future of solar technology it has the potential to exceed 50 per cent efficiency in solar.